Elastic wheel



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P. MARCHETTI ELASTIC WHEEL Filed Aug. 25 1919 abesdc 9h R z m 1|... o O 0 Q o H a. 0 O o Patented May 15, 1.923.

(barren sreras,

TINE REPUBLIC.

. rat an rarest ems-r PERICLES MARoHErrr, oroonor, sanra rn, ARGENTINA; nssronoa rosrnmca'ro ARGENTINO PARA LA EXPLQTACIQN DE INVENTOS, or" BUENos AIRES, nnoEN- 1 ELIASTIC'WHEELJE Application filed August 25, 1919; Serial in. 319,709.

To all col omc'tmag concern. r v

. Beitknown that I, PERICLES MARoHn'rrI, subject of Italy, and resident oi Godoy,

Province of Santa Fe,.Argentine Republic,

' screws, and which as a whole will have the necessary elasticity to substitute advantageously for all other vehicle wheels hitherto used, whether pneumatic or otherwise, having regard not only to conditions of elasticity, but also of durability and economy.

' In the accompanying drawings a form of wheel embodying my invention is illustrated.

In said drawings Fig. 1 is a general view of the wheel in side elevation, partially in section;

Fig. 2 is a transverse section drawn to augmented scale, of one of the spokes with its component parts of plunger, cylinder and spiral spring, and a section of tire,

omitting the covering or supplementary tire.'

The details of construction are as follows: In Fig. 1, a is a tire section; b the plunger forming part of the spoke; c the cylinder also forming part of the spoke (Z the lubricant inside of the cylinder 0'; e is a rubber gasket or ring inside of the cylinder placed on the spiral spring .9; forming a sort of: packing; f is a rim to hold the spokes in position; 9 represents the hub discs of the wheel; h are the screws holding together the two hub discs; 1' the seating for the spoke in each tire section; is the extra screws uniting the two parts of the hub, only necessary in large wheels; Z the side grooves in the tire sections, usually alike on both sides of in the wheel hub for admitting the axle of the vehicle on which the wheel to be used;

centre for the plunger (or the cylinderyof the spokes; and 8the spiral spring-forming part of the spoke. The hub is indicated diagrammatically in Fig. 1 of the drawings, and may be of any suitable construction,

79 the screws for unitingthe hubdisks g to I. r the hub of the wheel; q the seating in thew I and forms no part of my "presentimprove,

ment.

When the coach bears upon the wheels,

elastic parts of the wheel begin'tooperate';

thus it we supposevit to be resting upon the tire section a, (Fig.1), the weight of the coach will cause the plunger in the spoke corresponding to said section toslide inwardly through the opening of the sustaining ring, compressing the spiral spring within the spoke cylinder, and thus successively oneach section of the tire as the wheel changes position, the operation executed is simply the absorption of the shock produced by each obstacle passed over bythe wheel, in a proportion equal to the extent a greatly the repairs which maybecome necessary to make in any of the component parts.

In practice the cables are threaded in the grooves of the tire-sections and the ends of able means, such as the turn buckles usually employed for this purpose, the said turnbuckles or'othe'r connecting means being housed inone of the tire blocks which is provided with recesses of suitable size for thispurpose.

ber according to the size of the wheel'and the degree of elasticity desired.

Each spoke is held in its seating in they corresponding tire section by pressure alone,

its union with the wheel hub being effected in the same manner. The. holding of the spokes'in place in the wheel is effected by the rim indicated by the letter f (Fig. 1)

As here shown, each tire section is pro- .vided with three grooves in which the ca- Y bles n are fitted, but any suitable number of groovesand cables may be employed Within the scope of my invention.

' For city use on stone, Wood or macadam pavements, or the like, there maybe placed on the tread and secured by suitable fastening means, a covering or supplementary tire of sole leather, rubber or other adequate material as indicated at a" of Fig. l, susceptible of being replaced When Worn and serving thep'urpose of deadening the noise andreducing the Wear of the tires as Well as of the pavement. V

The hub may be of any suitable construction. y

it is understood that the details of construction shown in the drawings are not exclusivc, as it is evident that changes may occur to those skilled in the art, Within the sco as of the'appended claim.

, I aving thus described my invention, What I claim and desire to protect by Letters Patent of the United States of America, is A wheel having a rim, radially movable spring projected spoke members projecting therefrom, segmental tire sections on the outer ends of the spoke members, arranged in closely spaced relation and provided Withlongitudinal grooves in their outer sides, and

PERICLES MARGHETTI.

Witnesses R. N. HUNTINGTON, P. ERNEST MARTIN. 

